<?php

interface Db_Interface
{
	function connectionClose();
	function connectionIsActive();
	function database($name);
	function encoding($charset);
	function lastInsertId();
	function prepare($statement);
	function query($statement);
	function quote($unescaped_string);
	function transactionBegin();
	function transactionCommit();
	function transactionIsActive();
	function transactionRollback();
	function __construct($settings);
}